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31179 Gongju

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1211: 660:, located in Chungcheongnam Province. It has a population of approximately 120,000 and was the capital of Baekje dynasty in the 5th century AD and the seat of the provincial government until 1932. The official naming citation was published by the 827:
Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters".
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Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results".
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Ruthroff, John C. (April 2013). "Lightcurve Analysis of Main Belt Asteroids 1115 Sabauda 1554 Yugoslavia, 1616 Filipoff, 2890 Vilyujsk, (5153) 1940 GO, and (31179) 1997 YR2".
1345: 1285: 1630: 1610: 321: 1338: 1306: 1278: 447: 96: 629: 1620: 1331: 1462: 1072: 987: 1271: 1130: 29: 298: 1394: 227: 1553: 466:, approximately 5 kilometers (3 miles) in diameter. It was discovered on 21 December 1997, by Japanese amateur astronomer 1625: 1232: 1379: 1037:
Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families".
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in October 1989, more than 8 years prior to its official discovery observation at Chichibu.
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with Jupiter, a depleted zone that separates the inner from the intermediate asteroid belt.
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of the main belt, consisting of stony and carbonaceous subfamilies. The family, named after
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of 4.8 hours and possibly an elongated shape. It was named for the South Korean city of
1499: 1467: 1432: 1248: 1123: 540: 268: 249: 1127: 1604: 1523: 1422: 1417: 1082: 988:"SDSS-based taxonomic classification and orbital distribution of main belt asteroids" 918: 866: 858: 599: 463: 926: 1589: 1362: 653: 640:
assumes an albedo of 0.21 and calculates a diameter of 5.04 kilometers based on an
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Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010).
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at the Shadowbox Observatory in Indiana. Lightcurve analysis gave a well-defined
1579: 1528: 1489: 1025: 495: 276: 153: 1548: 1494: 591: 467: 173: 34: 969: 1584: 1474: 1323: 341: 137: 1263: 1404: 544: 459: 625: 509: 500: 632:, Gongju measures 4.675 kilometers in diameter and its surface has an 657: 483: 83: 1047: 1515: 901: 841: 367: 1327: 1267: 1147:
Discovery Circumstances: Numbered Minor Planets (30001)-(35000)
798:"Asteroid 31179 Gongju – Nesvorny HCM Asteroid Families V3.0" 733:"JPL Small-Body Database Browser: 31179 Gongju (1997 YR2)" 606:
of 4.829 hours with a high brightness amplitude of 0.80
1572: 1514: 1451: 1403: 1361: 420: 399: 374: 353: 327: 320: 308: 296: 286: 274: 259: 247: 237: 225: 215: 202: 188: 160: 129: 94: 77: 65: 60: 52: 40: 28: 23: 570:Based on the Moving Object Catalog (MOC) of the 981: 979: 943: 941: 822: 820: 818: 527:once every 3 years and 10 months (1,394 days; 1339: 1279: 8: 695: 693: 691: 689: 687: 685: 683: 523:asteroid belt at a distance of 2.0–2.9  18: 624:According to the survey carried out by the 1367: 1346: 1332: 1324: 1286: 1272: 1264: 1209: 1046: 1011: 900: 840: 727: 725: 723: 721: 656:was named after the South Korean city of 792: 790: 1631:Astronomical objects discovered in 1997 1611:Minor planet object articles (numbered) 1065:10.2458/azu_uapress_9780816532131-ch016 679: 610:, indicative of a non-spherical shape ( 882: 880: 878: 876: 767: 765: 763: 761: 759: 757: 755: 753: 638:Collaborative Asteroid Lightcurve Link 17: 775:. Asteroid Lightcurve Database (LCDB) 299:Longitude of ascending node 7: 598:observations by American astronomer 1214: 1124:Asteroid Lightcurve Database (LCDB) 630:Wide-field Infrared Survey Explorer 531:of 2.44 AU). Its orbit has an 14: 1157:AstDyS-2, Asteroids—Dynamic Site 1141:Dictionary of Minor Planet Names 551:begins with its observations as 474:near Tokyo, central Japan. The 773:"LCDB Data for (31179) Gongju" 590:In October 2012, a rotational 462:from the inner regions of the 1: 594:of Gongju was obtained from 1013:10.1051/0004-6361/200913322 311:Argument of perihelion 1647: 992:Astronomy and Astrophysics 919:10.1088/0004-637X/741/2/90 859:10.1088/0004-637X/741/2/68 512:, is located near the 3:1 494:Gongju is a member of the 132:Minor planet category 1621:Discoveries by Naoto Sato 1370: 1355:Small Solar System bodies 1301: 950:The Minor Planet Bulletin 889:The Astrophysical Journal 829:The Astrophysical Journal 737:Jet Propulsion Laboratory 701:"31179 Gongju (1997 YR2)" 519:It orbits the Sun in the 437: 250:Orbital period (sidereal) 180: 168: 1133:16 December 2017 at the 802:Small Bodies Data Ferret 735:(2018-02-26 last obs.). 572:Sloan Digital Sky Survey 566:Physical characteristics 490:Orbit and classification 423:Absolute magnitude  322:Physical characteristics 97:Alternative designations 1295:Minor planets navigator 1206:JPL Small-Body Database 1004:2010A&A...510A..43C 448:provisional designation 356:Synodic rotation period 162:Orbital characteristics 1480:Trans-Neptunian object 1170:Observation prediction 1149:– Minor Planet Center 1097:"MPC/MPO/MPS Archive" 182:Uncertainty parameter 1453:Distant minor planet 1041:. pp. 297–321. 636:of 0.353, while the 560:La Silla Observatory 543:with respect to the 472:Chichibu Observatory 458:) is a stony Nysian 68:MPC designation 1626:Named minor planets 1257:Physical parameters 1101:Minor Planet Center 1057:2015aste.book..297N 962:2013MPBu...40...90R 911:2011ApJ...741...90M 851:2011ApJ...741...68M 705:Minor Planet Center 662:Minor Planet Center 620:Diameter and albedo 89:(South Korean city) 53:Discovery date 42:Discovery site 20: 1194:Observational info 642:absolute magnitude 628:mission of NASA's 30:Discovered by 1598: 1597: 1510: 1509: 1395:Meanings of names 1321: 1320: 514:orbital resonance 441: 440: 282:0° 15 29.52 / day 255:3.82 yr (1,394 d) 1638: 1368: 1348: 1341: 1334: 1325: 1313:(31180) 1997 YX3 1288: 1281: 1274: 1265: 1249:Orbital elements 1213: 1112: 1111: 1109: 1107: 1093: 1087: 1086: 1050: 1034: 1028: 1024: 1022: 1020: 1015: 983: 974: 973: 945: 936: 930: 904: 884: 871: 870: 844: 824: 813: 812: 810: 808: 794: 785: 784: 782: 780: 769: 748: 747: 745: 743: 729: 716: 715: 713: 711: 697: 670: 664:on 14 May 2014 ( 615: 557: 503: 456: 416: 395: 393: 387: 384: 377:Geometric albedo 370: 365: 349: 344: 339: 151: 125: 118: 107: 90: 56:21 December 1997 24:Discovery  21: 1646: 1645: 1641: 1640: 1639: 1637: 1636: 1635: 1601: 1600: 1599: 1594: 1568: 1506: 1447: 1399: 1357: 1352: 1322: 1317: 1297: 1292: 1186:Proper elements 1135:Wayback Machine 1120: 1115: 1105: 1103: 1095: 1094: 1090: 1075: 1036: 1035: 1031: 1018: 1016: 985: 984: 977: 947: 946: 939: 886: 885: 874: 826: 825: 816: 806: 804: 796: 795: 788: 778: 776: 771: 770: 751: 741: 739: 731: 730: 719: 709: 707: 699: 698: 681: 677: 665: 650: 622: 611: 604:rotation period 588: 586:Rotation period 580:S-type asteroid 574:, Gongju has a 568: 556: 552: 549:observation arc 535:of 0.19 and an 529:semi-major axis 506:asteroid family 504:), the largest 499: 492: 480:rotation period 476:S-type asteroid 455: 451: 432: 428: 410: 404: 391: 389: 388: 385: 382: 379: 363: 361: 358: 347: 345: 337: 335: 332: 313: 301: 279: 264: 252: 230: 228:Semi-major axis 190:Observation arc 172:23 March 2018 ( 152: 145: 134: 124: 120: 119: 117: 113: 106: 102: 99: 88: 87: 80: 70: 12: 11: 5: 1644: 1642: 1634: 1633: 1628: 1623: 1618: 1616:Nysa asteroids 1613: 1603: 1602: 1596: 1595: 1593: 1592: 1587: 1582: 1576: 1574: 1570: 1569: 1567: 1566: 1561: 1556: 1554:Near-parabolic 1551: 1546: 1541: 1536: 1531: 1526: 1520: 1518: 1512: 1511: 1508: 1507: 1505: 1504: 1503: 1502: 1500:Scattered disc 1497: 1492: 1487: 1477: 1472: 1471: 1470: 1468:Neptune trojan 1465: 1457: 1455: 1449: 1448: 1446: 1445: 1443:Spectral types 1440: 1435: 1433:Jupiter trojan 1430: 1425: 1420: 1415: 1409: 1407: 1401: 1400: 1398: 1397: 1392: 1387: 1382: 1377: 1371: 1365: 1359: 1358: 1353: 1351: 1350: 1343: 1336: 1328: 1319: 1318: 1316: 1315: 1310: 1302: 1299: 1298: 1293: 1291: 1290: 1283: 1276: 1268: 1262: 1261: 1260: 1259: 1217:Close approach 1198: 1197: 1196: 1150: 1144: 1143:, Google books 1138: 1126:, query form ( 1119: 1118:External links 1116: 1114: 1113: 1088: 1073: 1029: 1026:(PDS data set) 975: 937: 872: 814: 786: 749: 717: 678: 676: 673: 649: 646: 621: 618: 587: 584: 567: 564: 554: 491: 488: 453: 439: 438: 435: 434: 429: 421: 418: 417: 405: 400: 397: 396: 380: 375: 372: 371: 359: 354: 351: 350: 333: 328: 325: 324: 318: 317: 314: 309: 306: 305: 302: 297: 294: 293: 290: 284: 283: 280: 275: 272: 271: 265: 260: 257: 256: 253: 248: 245: 244: 241: 235: 234: 231: 226: 223: 222: 219: 213: 212: 206: 200: 199: 192: 186: 185: 178: 177: 166: 165: 158: 157: 135: 130: 127: 126: 122: 115: 104: 100: 95: 92: 91: 81: 78: 75: 74: 73:(31179) Gongju 71: 66: 63: 62: 58: 57: 54: 50: 49: 44: 38: 37: 32: 26: 25: 13: 10: 9: 6: 4: 3: 2: 1643: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1614: 1612: 1609: 1608: 1606: 1591: 1588: 1586: 1583: 1581: 1578: 1577: 1575: 1571: 1565: 1562: 1560: 1557: 1555: 1552: 1550: 1547: 1545: 1542: 1540: 1537: 1535: 1532: 1530: 1527: 1525: 1522: 1521: 1519: 1517: 1513: 1501: 1498: 1496: 1493: 1491: 1488: 1486: 1483: 1482: 1481: 1478: 1476: 1473: 1469: 1466: 1464: 1461: 1460: 1459: 1458: 1456: 1454: 1450: 1444: 1441: 1439: 1436: 1434: 1431: 1429: 1426: 1424: 1423:Asteroid belt 1421: 1419: 1418:Aten asteroid 1416: 1414: 1411: 1410: 1408: 1406: 1402: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1372: 1369: 1366: 1364: 1363:Minor planets 1360: 1356: 1349: 1344: 1342: 1337: 1335: 1330: 1329: 1326: 1314: 1311: 1309: 1308: 1304: 1303: 1300: 1296: 1289: 1284: 1282: 1277: 1275: 1270: 1269: 1266: 1258: 1254: 1250: 1246: 1242: 1241:Orbit diagram 1238: 1234: 1230: 1226: 1222: 1218: 1215: 1212: 1208: 1207: 1202: 1199: 1195: 1191: 1187: 1183: 1179: 1175: 1171: 1167: 1163: 1160: 1159: 1158: 1154: 1151: 1148: 1145: 1142: 1139: 1136: 1132: 1129: 1125: 1122: 1121: 1117: 1102: 1098: 1092: 1089: 1084: 1080: 1076: 1074:9780816532131 1070: 1066: 1062: 1058: 1054: 1049: 1044: 1040: 1033: 1030: 1027: 1014: 1009: 1005: 1001: 997: 993: 989: 982: 980: 976: 971: 967: 963: 959: 955: 951: 944: 942: 938: 934: 928: 924: 920: 916: 912: 908: 903: 898: 894: 890: 883: 881: 879: 877: 873: 868: 864: 860: 856: 852: 848: 843: 838: 834: 830: 823: 821: 819: 815: 803: 799: 793: 791: 787: 774: 768: 766: 764: 762: 760: 758: 756: 754: 750: 738: 734: 728: 726: 724: 722: 718: 706: 702: 696: 694: 692: 690: 688: 686: 684: 680: 674: 672: 668: 663: 659: 655: 647: 645: 643: 639: 635: 631: 627: 619: 617: 614: 609: 605: 601: 600:John Ruthroff 597: 593: 585: 583: 581: 577: 576:spectral type 573: 565: 563: 561: 550: 547:. The body's 546: 542: 538: 534: 530: 526: 522: 517: 515: 511: 507: 502: 497: 489: 487: 485: 481: 477: 473: 469: 465: 464:asteroid belt 461: 457: 449: 445: 436: 430: 427: 426: 419: 414: 409: 406: 403: 402:Spectral type 398: 381: 378: 373: 369: 360: 357: 352: 343: 334: 331: 330:Mean diameter 326: 323: 319: 315: 312: 307: 303: 300: 295: 291: 289: 285: 281: 278: 273: 270: 266: 263: 258: 254: 251: 246: 242: 240: 236: 232: 229: 224: 220: 218: 214: 211: 207: 205: 201: 197: 193: 191: 187: 183: 179: 175: 171: 167: 163: 159: 155: 149: 143: 140:   139: 136: 133: 128: 111: 101: 98: 93: 85: 82: 76: 72: 69: 64: 59: 55: 51: 48: 47:Chichibu Obs. 45: 43: 39: 36: 33: 31: 27: 22: 16: 1590:Space debris 1307:31179 Gongju 1305: 1252: 1244: 1236: 1228: 1220: 1204: 1201:31179 Gongju 1189: 1181: 1178:Orbital info 1173: 1165: 1156: 1153:31179 Gongju 1104:. Retrieved 1100: 1091: 1039:Asteroids IV 1038: 1032: 1017:. Retrieved 995: 991: 956:(2): 90–91. 953: 949: 892: 888: 832: 828: 805:. Retrieved 801: 777:. Retrieved 740:. Retrieved 708:. Retrieved 704: 654:minor planet 651: 637: 623: 589: 569: 533:eccentricity 518: 493: 450: 444:31179 Gongju 443: 442: 424: 348:(calculated) 262:Mean anomaly 239:Eccentricity 141: 109: 61:Designations 19:31179 Gongju 15: 1580:Cosmic dust 1544:Long-period 1534:Halley-type 1490:Kuiper belt 1375:Designation 596:photometric 578:of a stony 537:inclination 496:Nysa family 366:0.001  340:0.152  288:Inclination 277:Mean motion 79:Named after 1605:Categories 1585:Meteoroids 1564:Sungrazing 1539:Hyperbolic 1495:Oort cloud 1438:Near-Earth 1048:1502.01628 1019:30 October 807:27 October 675:References 592:lightcurve 468:Naoto Sato 217:Perihelion 198:(10,369 d) 176:2458200.5) 1475:Damocloid 1233:Ephemeris 1225:Discovery 1162:Ephemeris 1083:119280014 970:1052-8091 902:1109.6407 895:(2): 25. 867:118745497 842:1109.4096 835:(2): 20. 644:of 13.8. 608:magnitude 558:at ESO's 386:(assumed) 233:2.4427 AU 221:1.9732 AU 138:main-belt 1559:Periodic 1485:Detached 1405:Asteroid 1131:Archived 927:35447010 545:ecliptic 460:asteroid 346:5.04 km 204:Aphelion 1524:Extinct 1463:Centaur 1203:at the 1053:Bibcode 1000:Bibcode 958:Bibcode 933:catalog 907:Bibcode 847:Bibcode 626:NEOWISE 553:1989 TM 510:44 Nysa 470:at his 452:1997 YR 316:248.25° 304:81.303° 292:3.4527° 208:2.9123 164:  156:  121:1999 CS 114:1989 TM 103:1997 YR 86:  35:N. Sato 1516:Comets 1428:Family 1413:Active 1380:Groups 1253:· 1251:  1245:· 1243:  1237:· 1235:  1229:· 1227:  1221:· 1219:  1190:· 1188:  1182:· 1180:  1174:· 1172:  1166:· 1164:  1081:  1071:  998:: 12. 968:  925:  865:  667:M.P.C. 658:Gongju 648:Naming 634:albedo 484:Gongju 478:has a 267:192.32 243:0.1922 194:28.39 142:· 110:· 108:  84:Gongju 1573:Other 1529:Great 1255: 1247: 1239: 1231: 1223: 1192: 1184: 1176: 1168: 1106:4 May 1079:S2CID 1043:arXiv 923:S2CID 897:arXiv 863:S2CID 837:arXiv 779:4 May 742:4 May 710:4 May 669:88406 652:This 521:inner 415:-MOC) 394:0.028 390:0.353 362:4.829 336:4.675 170:Epoch 148:inner 144: 112: 1549:Lost 1390:Moon 1385:List 1128:info 1108:2018 1069:ISBN 1021:2019 966:ISSN 809:2019 781:2018 744:2018 712:2018 539:of 3 433:13.8 431:13.4 413:SDSS 383:0.21 154:Nysa 1155:at 1061:doi 1008:doi 996:510 915:doi 893:741 855:doi 833:741 671:). 616:). 613:U=3 501:405 425:(H) 1607:: 1099:. 1077:. 1067:. 1059:. 1051:. 1006:. 994:. 990:. 978:^ 964:. 954:40 952:. 940:^ 921:. 913:. 905:. 891:. 875:^ 861:. 853:. 845:. 831:. 817:^ 800:. 789:^ 752:^ 720:^ 703:. 682:^ 582:. 525:AU 486:. 342:km 210:AU 196:yr 174:JD 123:56 1347:e 1340:t 1333:v 1287:e 1280:t 1273:v 1137:) 1110:. 1085:. 1063:: 1055:: 1045:: 1023:. 1010:: 1002:: 972:. 960:: 935:) 931:( 929:. 917:: 909:: 899:: 869:. 857:: 849:: 839:: 811:. 783:. 746:. 714:. 555:9 541:° 498:( 454:2 446:( 411:( 408:S 392:± 368:h 364:± 338:± 269:° 184:0 150:) 146:( 116:9 105:2

Index

Discovered by
N. Sato
Discovery site
Chichibu Obs.
MPC designation
Gongju
Alternative designations
Minor planet category
main-belt
inner
Nysa
Orbital characteristics
Epoch
JD
Uncertainty parameter
Observation arc
yr
Aphelion
AU
Perihelion
Semi-major axis
Eccentricity
Orbital period (sidereal)
Mean anomaly
°
Mean motion
Inclination
Longitude of ascending node
Argument of perihelion
Physical characteristics

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